A scent neutralizing unit includes a housing, an odor neutralizing gas emitter, and an active noise canceling system. The odor neutralizing gas emitter is coupled to the housing and is configured to provide an odor neutralizing gas that neutralizes odor particles. The active noise canceling system includes a microphone configured to generate a captured signal representing a noise signal, an acoustic transducer configured to emit audio signals, and a controller operatively coupled to the microphone and the acoustic transducer and configured to receive the captured signal from the microphone. The controller is configured to control the acoustic transducer to emit an anti-noise signal based on the captured signal where the anti-noise signal is configured to attenuate the noise signal.
